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w LL DI A M n; H o o ,rn R; o F L1 B u R TY, v1 nGINI A; Leners Pacht N0.- eaess, fzaeasepmbw 1v, 186i.

coprire ArPAnATUs.

To ALL WHoMr MAY coNcnnN;

Be it known that I, W.: HOOPER, of Liberty, in the county of Bedford, and State of Virginia, havie` invented certainnew and useful improvements in Capping Instruments; and Ido hereby declare that the following is a full, clear,an d exact description thereof, reference being had to the accompanying drawings, making part` i oi'` this Vspeciiication, and to the letters oi reference marked thereon, like letters indicating like parts wherever they occur.

o enable others skilled inV the art to construct and use my invention I will proceed to describe it. My invention consists in a novel construction of a cuppi'ng apparatus, in which cutting bladsare used which are tubular, to permit the blood to be drawn throughthem while theytreman Vin the flesh, and which are also made adjustable, to regulate the depth of their cut,'and in certain details inthe construction of the apparatus.

Figure lis a vertical section ot'my improved apparatus, and l liigures` 2 and 3 are portions-of the same, represented more in detail.

I provide a bell-shaped cup, A, of Vglass or other suitable inaterial, `preferring that which is more or less transparent, and attach to its upperend a tubular stem, C, having a valve or cock, a, in it, as `represented in i lig. 1. 1 This stem C, I makc with a flange, '0, as shown, and have its end extend far enough into the cup to` receivea. nut, c. To render itair-tight, and-prevent the glass from beinghbrokenVI use a rubber washer, e, under the flange o, and between it and the cup, and also a similar-washer between the nutc and the cup ou the:

inside. Bythis means the stem can bc detached and applied to another cup at anytime, whenever desired.

An airpump,1B, is connected to the upper end ofthe stem C, byia ground-joinhor by a rscrcw,'as usual, for i hte `purpose of exhaustiugthe air from ,the cup. To the mouth. of the cup A, I secure a metal mouth-piece, E,

which is ina-de slightly concavcaround its-inner -lower portion, as represented in fig. 1." This isvalso Aprovided i with a diaphragm-,441, having a series of holes in it of proper size to'permitV the cutting bladesf'to protrude through it, as shown. Thescblades consist of a tubular piece of full s ize at their upper. end, and havingaV screwthread, cut thereon, as shown in flg. 3, to secure them firmly-in a metallic plate, D, which islittedi accurately within the upperportion of the month-piece E, 4above thc diaphragm u, as represented in fig. Il'.` Ai, A

thumb-screw, b, having itslower eudjournalled in the diaphragm ul, serves to raise or lower the plate D, and

thereby to adjust thc bladesf, by causing them to protrudcmorc or less through the holes in the diaphragurz, i

as shown in iig. 1. The diaphragm n has a slot, It, orniedin it -to pei-init the hcadofthe screvrbtopassthrough it when it is desired to insert or remove the plate D with the blades for cleaning, sharpening, orotlicr purposes. The hole or tubular opening in thogbladcsf does not extend through their entire length, thelower-portion being left solid,` as represented in iig. 3, to form the cutting edge, which-may he made of full width, as shown, or lance-- shaped, as found most desirable in practice. These blades are bevelled on each side, to bring them to a. sharp cutting edge; this bevellin'g cuttingthrough oneach side-to the tubular openirg n, this `opening bcingniiled.cut` transversely, as represented inthe right-hand figure of'fig. 3 at n. p

It will thus be seen that when thc cut hasbeen made, by applying the cu'pwith suihcientprcssurc to cause i the blades to penetrate to the proper depth, the blood can at once flow through the'opening inthe blades, up

into tho cupiA, while the blades remain inthe licsh, by which means the punctures are kept from lacing` closed prematurely, as frequently happens with thc ordinary device; By exhausting the airfromthe thus remove ing the atmospheric pressure, the flow .of the bloo'dwill be largely increased, andfas this is done while theblades remain in the flesh, it follows that the blood, being thus drawn from thc punctures, has no' time totcoagulate` therein, and -thus close them and prevent its ilo-w, asis the case where the blades arejgemovgd'. Not only islthe atmospheric pressure thusreliovcd from the surface oi' the flesh, butalso `frourthc vertical surfaces ofthe cuts,

at which points thelbloodvcins have been severed, thus applyingithe power of thc suction (or absence of ritmospheric pressure) directly to the open ends of the veinsnthemsclvcs. -By these means the dow of the blood may' be greatly stimulated and increased, and can be regulated 'by creatingfmore or less of a vacuum within the cup.1

The diaphragm zi also servesas a rest or support for the surface of the leshbetween the cuts; as, when thc surface is drawn outward by thesuctionpower of the pump, it will come in contact with the under surface ofi thediaphragln, thereby relieving those portions 'of'the surface fromV the effects of the vacuum, and thus lesse-n2 ing the sensation of pain. By-marking ontlre cup a graduated scale, as indicated in red, the quantity of blood drawn may be determined or seen at a glance, without removing the apparatus.

Having thus deseribed'my invention, what I claim, is-

1. 'A clipping device having a series of tubular blades arranged' to operate substantially as shown and described. l I

2. In'combination with the cup A, I claim the detachable mouthpiece E, having holes for the blades to operatethrongh, as sot forth.

The combination of the mouth-piece E, plate D, having the bladesf attached thereto, and screw b, \vhen arranged for joint operation as described. I

WM. D. IIOOPER.

Witnesses:

WM. L. Lownnr, R. O. LowRnY. 

